Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Eviota: No etymology given, suggested by Christopher Scharpt: from Latin 'eu' for 'true' and 'iota' for anything very small, in combination 'truly very small' referring to it as being the smallest vertebrate at the time it has benn described by Jenkins (thus, making the suggestion by Scharpt plausible.; rubriguttata: Name from Latin 'ruber' for red and 'guttatus' meaning spotted, referring to the distinctive red spots on the dorsal and anal fins. More on authors: Greenfield & Suzuki.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic; depth range 6 - 9 m (Ref. 86696), usually - m (Ref. ). Subtropical; 0°C -
Northwest Pacific: Japan, Ryukyu Is.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.3 cm SL (female)
Morphology | Morphometrics
spines: 7. This species is distinguished from its congeners by the following set of characters: cephalic
sensory-pore system pattern group1 (complete); dorsal/anal fin-ray formula 8/7; pectoral-fin rays branched; anterior spines of first dorsal fin not elongated; female genital papilla non-fimbriate; no 5th pelvic-fin ray; body relatively deep, 25% SL; occipital spot or spots on pectoral-fin base absent; internal blotch over ural centrum above midline, faint when preserved; both dorsal fins and anal fin with small, distinct, round red spots when fresh; when fresh and preserved, sides and belly peppered with tiny black chromatophores (Ref. 86696).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Greenfield, D.W. and T. Suzuki, 2011. Two new goby species of the genus Eviota from the Ryukyu Islands, Japan (Teleostei: Gobiidae). Zootaxa 2812:63-68. (Ref. 86696)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 20.5 - 26.3, mean 23.3 °C (based on 101 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00475 - 0.02204), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .